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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179821073 (SMSS J172717.46-204933.5)

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Data releaseDR4
RA (deg)261.8228
Dec (deg)-20.8260
Galactic lon. (deg)4.6481
Galactic lat. (deg)7.8446
E(B-V) (SFD98) (mag)0.983
E(B-V) (GNILC) (mag)0.903 ± 0.044
Nearest DR4 source 179821173 (7.4 arcs away)
2nd-nearest DR4 source 179821072 (7.8 arcs away)
3rd-nearest DR4 source 179821075 (9.9 arcs away)
Times observed35
Total bad pixels4
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.619 ± 0.021 16.575 ± 0.016 15.596 ± 0.009 15.060 ± 0.010
Petrosian mag. — — 17.708 ± 0.029 16.652 ± 0.030 15.660 ± 0.011 15.133 ± 0.012

2 x 2 arcmin

Image cutouts

See all image cutouts for this object here.
Images shown are the best images available from DR4, as determined by their coverage and approximate photometric zero-point.

Photometry measurements

Filter Image ID Magnitude (APC05) Flags Exp time (s) Image Quality
(1=best to 3)
g 20140719114908 17.682 ± 0.068 0,0 5 2
g 20140722114132 17.737 ± 0.069 0,0 5 2
g 20140729111106 17.759 ± 0.066 0,0 5 2
g 20160420170043 17.544 ± 0.087 0,0 5 2
g 20180605124544 17.675 ± 0.078 0,0 5 2
g 20190505165725 17.648 ± 0.023 19,0 100 2
g 20190506165109 17.613 ± 0.025 3,0 100 2
g 20190507143127 17.614 ± 0.023 3,0 100 2
g 20210407183532 17.551 ± 0.074 16,0 5 2
r 20140719114939 16.663 ± 0.043 3,0 5 2
r 20140722114203 16.608 ± 0.041 0,0 5 2
r 20140729111131 16.559 ± 0.038 0,0 5 2
r 20160420170109 16.558 ± 0.046 0,0 5 2
r 20190505165926 16.571 ± 0.027 19,0 100 2
r 20190506165309 16.571 ± 0.026 3,0 100 2
r 20190507143327 16.548 ± 0.034 3,0 100 2
r 20200524153415 16.576 ± 0.054 3,0 5 2
r 20210407183558 16.596 ± 0.049 17,0 5 2
i 20140719115004 15.601 ± 0.030 3,0 10 2
i 20140722114229 15.598 ± 0.032 1,0 10 2
i 20140729111202 15.596 ± 0.031 0,0 10 2
i 20150901084153 15.593 ± 0.029 3,0 100 2
i 20150901084554 15.596 ± 0.028 3,0 100 2
i 20160420170134 15.611 ± 0.028 0,1 10 2
i 20180605124636 15.575 ± 0.037 3,0 10 2
i 20190505170526 15.589 ± 0.029 3,0 100 2
i 20190508164002 15.597 ± 0.027 3,0 100 2
i 20190509140533 15.642 ± 0.046 3,0 100 2
i 20200524153441 15.601 ± 0.037 3,0 10 2
i 20210407183626 15.614 ± 0.035 17,0 10 2
z 20140719115035 15.054 ± 0.029 3,0 20 2
z 20140722114259 15.063 ± 0.029 1,0 20 2
z 20140729111235 15.049 ± 0.030 0,0 20 2
z 20150901084353 15.052 ± 0.031 3,0 100 2
z 20150901084754 15.044 ± 0.028 3,0 100 2
z 20160420170204 15.096 ± 0.027 1,3 20 2
z 20180605124707 15.054 ± 0.034 3,0 20 2
z 20190505170726 15.057 ± 0.029 19,0 100 2
z 20190508164202 15.053 ± 0.025 3,0 100 2
z 20190509140733 15.098 ± 0.048 3,0 100 2
z 20200513183957 15.070 ± 0.030 3,0 100 2
z 20200524153511 15.012 ± 0.036 3,0 20 3
z 20210407183658 15.102 ± 0.032 19,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.05 3.78
GAIA source ID 4121011332353981184 4121011332325489920
Bp mag. 17.420 21.547
G mag. 16.280 20.545
Rp mag. 15.229 19.473
Bp/Rp excess 1.362 1.417
Parallax (mas) -0.029 ± 0.047 -0.476 ± 0.892
PM RA (mas/yr) -8.306 ± 0.058 0.844 ± 1.328
PM Dec (mas/yr) -6.494 ± 0.040 -0.427 ± 1.049
A.E.N. (mas) 0.0 ± 0.0 1.317 ± 0.514

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 17.978 ± 0.003
r 16.581 ± 0.002
i 15.770 ± 0.002
z 15.302 ± 0.002
Y -- ± --
J 13.563 ± 0.021
H 12.78 ± 0.02
K 12.521 ± 0.017
W1 12.442 ± 0.015
W2 12.541 ± 0.014
W3 11.5 ± --
W4 8.416 ± --
1Magnitude sources
FUV/NUV: AB mag (calibrated) from GALEX
ugriz: AB mag (Kron) from NOAO Source Catalog
YJHK: Vega mag from VISTA (2" aperture) or 2MASS PSC
W1-W4: Vega mag from CatWISE2020 or AllWISE (profile mag). No error value means the stated value is an upper limit.